What does the "PX" prefix stand for?
Quantitative Finance Stack Exchange is a question and answer site for finance professionals and academics. It only takes a minute to sign up.Sign up to join this community
PX is often used as an abbreviation for price in Bloomberg.
Fields prefixed with
PX are generally static fields: the value is requested only once and is based on whatever information is available when you send that request. On the other hand, real time fields keep sending new data as it becomes evailable.
As an example:
PX_LAST is the last price as of when you request it and won't change afterwards, whereas
LAST_PRICE is a real time last price which will keep updating if you subscribe to those changes.
Other examples include
You probably won't be able to find a direct one-to-one mapping for what the individual
X stands for, because the use of
PX is to avoid the
PS abbreviation, which appears like the more common "postscript" or similar words like "post", and this is by convention set at Bloomberg. Also, phonetically it makes more sense to use
PS instead of
PX, "coz" (pun intended) native speakers generally pronounce price more like "prize" than "prise" (note these are made-up words so may or may not correspond to the actual word).